Speed-limit warning and theft alarm.



G. WAGNER.

SPEED LIMIT WARNING AND THEFT ALARM.

APPLICATION FILED SEPT-18,19l6- Patented Aug. 13, 1918.

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AnoRNE-Ys G. WAGNER.

SPEED LIMIT WARNING AND IHEFT ALARM.

APPLICATION FILED SEPT-1B. 1916.

1 ,27 5,330. Patented Aug. 13, 191&

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WITNESSES:

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' GEORGEWAGNER, E OAKLAND, CALIFO, ASSIGNOB OF ONE-.-

' AN, 0F OAKLAND, CALIFORNIA.

B IO JULIUS &-

' sense-LI IT wme AND 'rnnrr AL To all whom it may concern:

Be it known that I, GEORGE WAGNER, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful Improvements in Speed-Limit Warnings and Theft Alarms, of which the following is a specification.

This invention relates to a warning device, designed to call attention when the legal rate of speed is exceeded by an automobile or other vehicle, and also to sound an alarm whenever an attempt is made to move the machine without permission.

to It consists of a gong centrally fixed to an axle and having a concaverim, a hammer mounted in line with the gong, tension devices which prevent the hammer from striking the gong while the car speed is within the legal'limit, tripping mechanism which causes the hammer to strike when the legal speed is exceeded, and means to retain this mechanism in operative position as long as the high speed is continued. It also includes means to retain the mechanism in such operative condition that the car cannot be started without sounding the alarm, unless the latter is unlocked. a

" The invention consists of the parts .and

the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a detail view ofthe front wheel of an automobile, showing the invention applied to the hub.

Fig. 2 is an enlarged vertical section on line 2-3 of Fig. 4, showing the operating parts in elevation.

N Fig 3 is an enlarged vertical section on line 2-3 of Fig. 4, showing the operating parts in section.

Fig. 4 is a vertical section on line 45 of Fig. 3 with the ball operating mechanism 85 partly removed.

Fig. 5 is 'a vertical section on line 45 of Fig. 3, showing the cams engaged to operate the bell continuously.

Fig. 6 is a vertical section on line 66 0 Fig. 3 looking toward the bell.

Fig. 7 is a perspective view of the clapper mechanism.

Fig. 8 shows the shoulder 20 in position to be engaged by the head 18.

Specification of Letters Patent. Patented Aug. 13, 1918.. Application filed. September 18, 1916. Serial No. 120,651.

Fig. 9 is a perspective view of the lockcam. n the present illustration, 1n device is connected with a front wheel turnable upon the non-revoluble spindle B, upon which the wheel turns with the usual antifrictional bearings. A gong or alarm 2 is fixed to the end of the spindle and is not revoluble. A hammer 3 is so mounted, with relation to the gong, (which is here shown as concave) that it may be caused to strike the gong whenever the speed limit is exceeded.

As shown in this construction, the arm 4 of the hammer is fixed to the fulcrumed or hub end of a lever 5, and the hammer is nor- ;wheel, as shown in Fig. 3.

Within the case is a cam 10 mounted upon antifrictional bearings, as shown in Fig. 3,

and freely turnable upon the extension of the fixed spindle B, and between the cam 10 and the bell is a cam 9 having pins 8 projecting from its "face so as to engage the arm 7 when the cam 9 is revolved. Thls cam is mounted upon the stationary spindle B and is only revolved by connection with the revolving" cam 10 as follows: Fixed to theinner periphery of the case 0 are springs 13.-

The opposite ends of these springs are secured to weights 11, as shown in Figs. 4 and 5. 12 are arms which connect the weights with the periphery of the cam 10.

The springs 13 have suflicient tension to force the weights 11 toward the center of the case, and thus cause the lever arms 12,

which are connected tangentially with the cam 10, to rotate the cam to the left, as shown in Fig. 4. This action is effected because the forcing of the weights 11 to a point nearer the center of the case must act to rotate the cam in a backward direction.

7c mally held out of contact with the gong by The periphery of the cam has a notch 14 formed in it and the surface of the cam to the right of the notch is formed so that this surface approaches the center, near the notch, as shown at 15. An arm 16 is fulcrumed at 17 and carries upon its opposite end a head 18 which is caused to rest upon the periphery of the cam by means of a spring 19 which is sufficiently strong to overcome any centrifugal tendency of the head 18.

When the speed of the car and the rotation of the casing C reach too great a point, the movement of the weights 11 will be sufficiently strong to overcome the tension of the spring 13 and as they move outward they will pull the cam to the right throughthe action of the arms 12 and this causes the head 18 to slide along the portion 15 of the cam and to gradually approach the notch 14:. lhe head 18 extends across the face of the cam 10 and also extends over the cam 9 which is of a little smaller diameter than the cam 10 and which will not be engaged by the head 18 until the latter has approached the center by following the surface 15 amtil it is sufliciently depressed to engage the shoulder 20 of the cam 9, and when this occurs the earn 9 will be caused to revolve and through its projecting studs 8 will engage the hammer-actuating lever and sound the alarm.

it will be manifest that a reduction of the speed of the car, when the occupant hears the alarm, will, by reason of the slower revolution of the parts, allo'w the'springs 13 to overcome the centrifugal action of the weights 11 and thus, through the connection of the arms 12 with the cam 10, to force the latter to revolve toward the left, and this causes the head 18 to move up the incline 15 until it is out of engagement with the shoulder of the cam 9 and the latter ceases to revolve.

If, however, the warning is disregarded and the speed further increased, the cam 10 will be rotated further, until the head '18 falls into the notch 14 and locks the cam, so that the alarm will continue to sound and cannot be stopped until the car is stopped and backed a revolution of the wheel to disengage the head 18 out of engagement and allow the parts to return to their normal position.

Variations of speed within legal limits will cause the weights 11 to move radially by centrifugal force and the arms 12 will act to rotate the cam 10 about its axis and this will allow the head 18 to slide in either direction upon the cam surface 15. The tension of the spring 19 is sufiicient to overcome centrifugal force and to retain the head 18 in sliding contact with the cam 15 until the speed becomes so great as to turn the cam far enough to allow the head 18 to fall into the notch 14, from which it can only be removed by stopping the car and lifting the head out of the notch, when the sp jings 13 will act to return the cam to its usual position.

As shown in Figs. 4: and'-8,"the shoulder 20.01? the cam 9 is of less elevation than that of the notch 14 of the cam 10, but it is high enough to allow the head 18 to engage it, while still resting upon the part 15 of the cam 10, and the oscillation of the cam beneath the head 18 will thus engage or disengage the head with the shoulder 20 unless the speed is increased so that the head drops into the notch 14, when the cams will be permanently locked in position and any movement of the car will be transmitted'through both cams to the signal.

When it is desired to leave the car and prevent its being moved without notice, the bolt 21 may be shifted against the periphery of cam 9 as indicated bv dotted lines in Fig.

- 5 so that the rotation of the wheel will effect rotation of the cam and operation of the hammer, the end of said bolt being cut away or formed so as to extend inwardly beyond the eriphery of cam 10.

Hiiving thus described my invention, what 1 claim and desire to secure by Letters Patcut is-- 1. A speed limit warning attachment for vehicles, including a Wheel and bearing axle, a fixed circular gong concentric with the axle spindle, a cam turnable upon the wheel axle and having a peripheral notch, centrifugally acting weights with arms connected with the cam, a second cam with projecting pins, a gong hammer having a trip arm in the line of revolution. of the pins, and'means conmovable by centrifugal action, a cam to which the weight member is pivoted and by the movements of which the cam is oscillated, said cam having a peripheral notch, a second notched cam with projecting pin lugs, a fulcrumed hammer, with the arm of which the lugs may contact, and means whereby the cams may be connected to revolve together and actuate the hammer.

8. A speed limit alarm comprising in combination with a vehicle wheel, a stationary gong, a fulcrumed tiltable hammer, a cam having pin lugs adapted to engage and actuate the hammer when a certain speed of revolution is exceeded, a weight member extensible by centrifugal'force in unison with the revolution of the wheel, a second cam to which the arm of the weight is pivoted provided with a notch and an incline leading down one side thereto, said first cam having ate l Jond cam and the depression of a depression registrable incline and down into the notch of: the" secto connect the two cams.

4. The combination with awheel 'revolu upon a non-revoluble spindle, of a gong;

ble fixed to and concentric with, the hammer fulcrumed to with the. gong,

spindle, a

adapted to engage and actuate the hammer,

'. said cam having a notch in its second cam parallel with the spring-pressed with connectionsby which the second cam rotated to allow the spring-pressed head'- to engage the notch of the first cam and rocams and engaging the tate It to cause the ins to engage'the 'hammer lever.

5. In a speed alarm attachment-ofthel character described, a revoluble Wheel,cen-

trifugally expansibleweight members revoluble in unison with the wheel, a cam, and

arms connecting it with said members so that the movement of the weight members. partially rotates the cam, a secondparallel cam with a peripheral shoulder, a spring-H :contacting with the pressed arm with a head incline of the first named cam to allow the head to depress and engage and rotate these'cond cam when the first cam face passes beneath the coacting head, pins projecting from the second cam,

an oscillatlng hammer which is set in motion by the pins, and a fixed gong with which the hammer contacts.

6. In a speed limit alarm, rotary means with the cam. notch, I and an arm having a part for riding on the o the first cam swing into contact. a cam with projecting pinsperiphery, a first, and also." having a peripheral notch, a, fulcrumed arm with a head-resting upon the cams, and centrifugally acting weights;

signal operable by said having a relatively {rotary member, cen

trifugallyoperated means for turning said member, a gong, means for'sounding the latter including a member rotatable by said first means but normally inoperatively related thereto,'and means for operatively connectingsaidfmembers when the first member is turned by 1; In a speed said centrifugal means.

limit alarm, rotary means having a relatively rotary member, cen- -tri fugal ly' operated means for turning said jmember, a gong,

means for sounding the latter including a first member but normally inoperatively related thereto,

.sa'id .first member having a cam s1 1rface;and the secondmember having.- a shoulder, :and means adapted the cam surface,

speed limit alarm, a driving roa driven rotatable member inoperatively related thereto, eachmember having a depression normally out of registry, centrifugal means for moving one memher to bring the depressions into registry, meansmovable into the registered depress'ions for-connecting thehmember, and a driven member. I

In testimonywhereof I have hereunto set my hand'in the presence of two subscribing witnesses.

l I GEORGE WAGNER. Witnesses: I

JOHN H. HERRING,

' W. W. HnALEr.

member rotatable by said' I 

